Omega Seamaster Planet Ocean 600 M Co-Axial Master Chronometer GMT Watch - 43.5 mm Steel Case - Bi-Directional Bezel - Black Ceramic Dial - 215.30.44.22.01.001 BLUE43. 5 mm stainless steel case with helium escape valve, transparent back, screw in crown, bi directional rotating bezel with polished bi ceramic black and white insert, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, black ceramic dial with Arabic numerals, caliber 8906 Self winding chronometer movement with Co Axial escapement and GMT time zone function, approximately 60 hours of power reserve, stainless steel
second time-zone displayed via off-center rotating disc
Complimentary black fabric strap with cream band and black PVD-treated 316L steel buckle
stainless steel bracelet with slightly curved center links
Water resistant to 50 meters
comes with additional alligator straps in light blue and black
Omega 9615 movement with Co-Axial Escapement
convex sapphire glass crystal with antireflective coating on both sides
Calibre Omega 2500 self-winding co-axial chronometer movement with date
satin-brushed brown openworked dial with brown counters and pink gold hands
Caliber Omega 8801 self winding movement with co-axial escapement
silver dial with red gold-coloured roman numeral hour markers and polished cabochons
Calibre Omega 8700 self-winding co-axial master chronometer movement with date